JP2623942B2 - 楽音信号発生装置 - Google Patents
楽音信号発生装置Info
- Publication number
- JP2623942B2 JP2623942B2 JP2233104A JP23310490A JP2623942B2 JP 2623942 B2 JP2623942 B2 JP 2623942B2 JP 2233104 A JP2233104 A JP 2233104A JP 23310490 A JP23310490 A JP 23310490A JP 2623942 B2 JP2623942 B2 JP 2623942B2
- Authority
- JP
- Japan
- Prior art keywords
- pitch
- coefficient
- waveform
- interpolation
- characteristic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H5/00—Instruments in which the tones are generated by means of electronic generators
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H7/00—Instruments in which the tones are synthesised from a data store, e.g. computer organs
- G10H7/08—Instruments in which the tones are synthesised from a data store, e.g. computer organs by calculating functions or polynomial approximations to evaluate amplitudes at successive sample points of a tone waveform
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
- G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms
- G10H1/125—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms using a digital filter
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H7/00—Instruments in which the tones are synthesised from a data store, e.g. computer organs
- G10H7/02—Instruments in which the tones are synthesised from a data store, e.g. computer organs in which amplitudes at successive sample points of a tone waveform are stored in one or more memories
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/131—Mathematical functions for musical analysis, processing, synthesis or composition
- G10H2250/145—Convolution, e.g. of a music input signal with a desired impulse response to compute an output
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/131—Mathematical functions for musical analysis, processing, synthesis or composition
- G10H2250/161—Logarithmic functions, scaling or conversion, e.g. to reflect human auditory perception of loudness or frequency
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
- G10H2250/545—Aliasing, i.e. preventing, eliminating or deliberately using aliasing noise, distortions or artifacts in sampled or synthesised waveforms, e.g. by band limiting, oversampling or undersampling, respectively
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
- G10H2250/571—Waveform compression, adapted for music synthesisers, sound banks or wavetables
- G10H2250/591—DPCM [delta pulse code modulation]
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
- G10H2250/571—Waveform compression, adapted for music synthesisers, sound banks or wavetables
- G10H2250/591—DPCM [delta pulse code modulation]
- G10H2250/595—ADPCM [adaptive differential pulse code modulation]
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
- G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
- G10H2250/621—Waveform interpolation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S84/00—Music
- Y10S84/09—Filtering
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2233104A JP2623942B2 (ja) | 1990-09-05 | 1990-09-05 | 楽音信号発生装置 |
KR1019910014928A KR0150223B1 (ko) | 1990-09-05 | 1991-08-28 | 악음신호발생장치 |
DE69128857T DE69128857T2 (de) | 1990-09-05 | 1991-09-03 | Vorrichtung zur Erzeugung eines Tonsignals |
EP91114820A EP0474177B1 (en) | 1990-09-05 | 1991-09-03 | Tone signal generating device |
CN91108664A CN1022071C (zh) | 1990-09-05 | 1991-09-04 | 音调信号发生器 |
US07/755,040 US5252773A (en) | 1990-09-05 | 1991-09-04 | Tone signal generating device for interpolating and filtering stored waveform data |
TW080107065A TW199930B (zh) | 1990-09-05 | 1991-09-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2233104A JP2623942B2 (ja) | 1990-09-05 | 1990-09-05 | 楽音信号発生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04114199A JPH04114199A (ja) | 1992-04-15 |
JP2623942B2 true JP2623942B2 (ja) | 1997-06-25 |
Family
ID=16949839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2233104A Expired - Lifetime JP2623942B2 (ja) | 1990-09-05 | 1990-09-05 | 楽音信号発生装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5252773A (zh) |
EP (1) | EP0474177B1 (zh) |
JP (1) | JP2623942B2 (zh) |
KR (1) | KR0150223B1 (zh) |
CN (1) | CN1022071C (zh) |
DE (1) | DE69128857T2 (zh) |
TW (1) | TW199930B (zh) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3029056B2 (ja) * | 1991-03-26 | 2000-04-04 | ヤマハ株式会社 | 電子楽器 |
JP2819948B2 (ja) * | 1992-07-16 | 1998-11-05 | ヤマハ株式会社 | 楽音信号記録再生装置 |
US5416264A (en) * | 1992-07-27 | 1995-05-16 | Yamaha Corporation | Waveform-forming device having memory storing non-compressed/compressed waveform samples |
GB9318524D0 (en) * | 1993-09-07 | 1993-10-20 | Ethymonics Ltd | Tone generator |
JP2762926B2 (ja) * | 1994-05-10 | 1998-06-11 | ヤマハ株式会社 | 楽音生成装置 |
JP2950461B2 (ja) * | 1994-05-31 | 1999-09-20 | 株式会社河合楽器製作所 | 楽音発生装置 |
US5742695A (en) * | 1994-11-02 | 1998-04-21 | Advanced Micro Devices, Inc. | Wavetable audio synthesizer with waveform volume control for eliminating zipper noise |
US6047073A (en) * | 1994-11-02 | 2000-04-04 | Advanced Micro Devices, Inc. | Digital wavetable audio synthesizer with delay-based effects processing |
US6246774B1 (en) | 1994-11-02 | 2001-06-12 | Advanced Micro Devices, Inc. | Wavetable audio synthesizer with multiple volume components and two modes of stereo positioning |
US5691496A (en) * | 1995-02-14 | 1997-11-25 | Kawai Musical Inst. Mfg. Co., Ltd. | Musical tone control apparatus for filter processing a musical tone waveform ONLY in a transient band between a pass-band and a stop-band |
TW281748B (en) * | 1995-05-19 | 1996-07-21 | Yamaha Corp | Method of composing music |
CN1591564B (zh) * | 1995-06-19 | 2010-10-06 | 雅马哈株式会社 | 形成乐音波形的方法和装置 |
US5847304A (en) * | 1995-08-17 | 1998-12-08 | Advanced Micro Devices, Inc. | PC audio system with frequency compensated wavetable data |
US5753841A (en) * | 1995-08-17 | 1998-05-19 | Advanced Micro Devices, Inc. | PC audio system with wavetable cache |
JP3658826B2 (ja) * | 1995-12-21 | 2005-06-08 | ヤマハ株式会社 | 楽音生成方法 |
WO1997031363A1 (en) * | 1996-02-21 | 1997-08-28 | Advanced Micro Devices, Inc. | Pc audio system with frequency compensated wavetable data |
WO2001039171A1 (en) * | 1999-11-24 | 2001-05-31 | Stmicroelectronics Asia Pacific Pte Ltd | Aliasing cancellation in audio effects algorithms |
KR100333622B1 (ko) * | 1999-12-29 | 2002-04-22 | 구자홍 | 디스크 드라이버의 가이드레버 구동장치 |
US6882976B1 (en) * | 2001-02-28 | 2005-04-19 | Advanced Micro Devices, Inc. | Efficient finite length POW10 calculation for MPEG audio encoding |
JP4645337B2 (ja) * | 2005-07-19 | 2011-03-09 | カシオ計算機株式会社 | 波形データ補間装置 |
JP5789993B2 (ja) * | 2011-01-20 | 2015-10-07 | ヤマハ株式会社 | 楽音信号発生装置 |
WO2018129558A1 (en) | 2017-01-09 | 2018-07-12 | Media Overkill, LLC | Multi-source switched sequence oscillator waveform compositing system |
JP7375317B2 (ja) * | 2019-03-25 | 2023-11-08 | カシオ計算機株式会社 | フィルタ効果付与装置、電子楽器及び電子楽器の制御方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03171098A (ja) * | 1989-11-30 | 1991-07-24 | Yamaha Corp | 波形発生装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4267761A (en) * | 1977-10-06 | 1981-05-19 | Kawai Musical Instrument Mfg. Co. Ltd. | Musical tone generator utilizing digital sliding formant filter |
JPS5792399A (en) * | 1980-11-29 | 1982-06-08 | Nippon Musical Instruments Mfg | Electronic musical instrument |
JPS6052895A (ja) * | 1983-09-02 | 1985-03-26 | ヤマハ株式会社 | 楽音信号発生装置 |
US4829463A (en) * | 1985-03-27 | 1989-05-09 | Akai Electric Co. Ltd. | Programmed time-changing coefficient digital filter |
DE3650389T2 (de) * | 1985-04-12 | 1996-03-07 | Yamaha Corp | Tonsignalerzeugungsvorrichtung. |
JPH0631989B2 (ja) * | 1985-11-14 | 1994-04-27 | ロ−ランド株式会社 | 電子楽器の波形発生装置 |
US4841828A (en) * | 1985-11-29 | 1989-06-27 | Yamaha Corporation | Electronic musical instrument with digital filter |
US4907484A (en) * | 1986-11-02 | 1990-03-13 | Yamaha Corporation | Tone signal processing device using a digital filter |
JPH0754432B2 (ja) * | 1986-12-30 | 1995-06-07 | ヤマハ株式会社 | 楽音信号発生装置 |
US4953437A (en) * | 1989-01-17 | 1990-09-04 | Gulbransen Incorporated | Method and apparatus for digitally generating musical notes |
US5140886A (en) * | 1989-03-02 | 1992-08-25 | Yamaha Corporation | Musical tone signal generating apparatus having waveform memory with multiparameter addressing system |
JP2766662B2 (ja) * | 1989-03-15 | 1998-06-18 | 株式会社河合楽器製作所 | 楽音発生装置の波形データ読み出し装置及び波形データ読み出し方法 |
US5157623A (en) * | 1989-12-30 | 1992-10-20 | Casio Computer Co., Ltd. | Digital filter with dynamically variable filter characteristics |
JP2628401B2 (ja) * | 1990-07-31 | 1997-07-09 | 株式会社河合楽器製作所 | 楽音発生装置 |
-
1990
- 1990-09-05 JP JP2233104A patent/JP2623942B2/ja not_active Expired - Lifetime
-
1991
- 1991-08-28 KR KR1019910014928A patent/KR0150223B1/ko not_active IP Right Cessation
- 1991-09-03 DE DE69128857T patent/DE69128857T2/de not_active Expired - Lifetime
- 1991-09-03 EP EP91114820A patent/EP0474177B1/en not_active Expired - Lifetime
- 1991-09-04 US US07/755,040 patent/US5252773A/en not_active Expired - Lifetime
- 1991-09-04 CN CN91108664A patent/CN1022071C/zh not_active Expired - Fee Related
- 1991-09-06 TW TW080107065A patent/TW199930B/zh active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03171098A (ja) * | 1989-11-30 | 1991-07-24 | Yamaha Corp | 波形発生装置 |
Also Published As
Publication number | Publication date |
---|---|
KR0150223B1 (ko) | 1998-12-15 |
CN1022071C (zh) | 1993-09-08 |
CN1059615A (zh) | 1992-03-18 |
EP0474177A2 (en) | 1992-03-11 |
JPH04114199A (ja) | 1992-04-15 |
DE69128857T2 (de) | 1998-09-17 |
EP0474177A3 (en) | 1993-10-06 |
KR920006909A (ko) | 1992-04-28 |
TW199930B (zh) | 1993-02-11 |
DE69128857D1 (de) | 1998-03-12 |
EP0474177B1 (en) | 1998-02-04 |
US5252773A (en) | 1993-10-12 |
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